JP3536935B2 - Heating element for stair melting - Google Patents
Heating element for stair meltingInfo
- Publication number
- JP3536935B2 JP3536935B2 JP16935994A JP16935994A JP3536935B2 JP 3536935 B2 JP3536935 B2 JP 3536935B2 JP 16935994 A JP16935994 A JP 16935994A JP 16935994 A JP16935994 A JP 16935994A JP 3536935 B2 JP3536935 B2 JP 3536935B2
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- protective layer
- layer
- sheet
- melting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Road Paving Structures (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Steps, Ramps, And Handrails (AREA)
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、降雪地における建造物
玄関先等の階段ステップ部に設置する階段融雪用発熱体
である。本発熱体の設置によりステップ部の積雪、結氷
を防止でき、スリップ、転倒等による人身事故を予防で
きる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating element for melting snow on a staircase, which is installed at a step of a staircase such as a building entrance in a snowfall area. By installing the heating element, snow and ice formation at the step portion can be prevented, and personal injury due to slipping, falling down, etc. can be prevented.
【0002】[0002]
【従来の技術】降雪地に建設された建物の玄関口等に階
段を有する構造物のステップ部は、降雪時、或は結氷時
に非常に滑りやすくなり、踏みはずしや転倒による人身
事故は後を断たない現状にある。2. Description of the Related Art The step portion of a structure having a staircase at the entrance of a building constructed in a snowfall area becomes very slippery during snowfall or icing, and personal injury due to stepping over or falling down is stopped. Not at present.
【0003】此の問題を解決する方法として、具体的に
は実開平01−60388号では、まずステップ上に融
雪効率を高める目的で断熱材を置き、その上に発熱素子
の表裏全面を電気絶縁防水シートで覆った発熱体を重ね
て置く構造で、融雪シートを階段に取り付けることを提
案している。また、実公平04−12181号において
は、発熱素子をゴム弾性体により被覆し、シート状に一
体的に成形して階段融雪マットを作成し、これを階段の
昇降方向に向けて設置するに際し、階段のステップ部に
発熱素子を位置させ、階段の立ち上がり部には発熱素子
を欠如させた形状になるよう、あらかじめ切欠き部を設
けたものとする考案を提案している。As a method for solving this problem, Japanese Utility Model Application Laid-Open No. 01-60388 discloses a method in which a heat insulating material is first placed on a step for the purpose of increasing the snow melting efficiency, and the entire surface of the heating element is electrically insulated thereon. It proposes to attach a snowmelt sheet to the stairs with a structure in which heating elements covered with a waterproof sheet are placed one on top of the other. In Japanese Utility Model Publication No. 04-12181, the heating element is covered with a rubber elastic body, and is integrally formed into a sheet to form a staircase snowmelt mat. There has been proposed a device in which a heating element is positioned at a step portion of a stair, and a cutout portion is provided in advance so as to have a shape without the heating element at a rising portion of the stair.
【0004】この上記2考案にあっては、階段ステップ
部の踏面部は、長期歩行使用により磨耗した場合や亀裂
その他の損傷を生じた場合の対応方法は何ら考慮されて
おらず、その様な時には発熱素子共に全交換するしかな
いことになる。また磨耗等による保護層の損傷による漏
電、感電等を避けるためには、むしろ実開平01−60
388号では、発熱素子に印加する電圧を30Vとする
ことが特徴とされている。[0004] In the above two inventions, no consideration is given to a method for dealing with a case where the tread portion of the stair step portion is worn or cracks or other damages caused by long-term walking use. Sometimes the heating elements must be completely replaced. In order to avoid electric leakage and electric shock due to damage of the protective layer due to abrasion, etc., it is preferable to use a conventional method in which the protective layer is not used.
No. 388 is characterized in that the voltage applied to the heating element is 30V.
【0005】また実開昭58−94704号にあって
は、発熱素子をL字形にし、その外側を、保護層として
L字形に成形した硝子繊維で強化された熱硬化性樹脂で
覆い、一体化する形状を提案している。この場合ステッ
プ部の踏面に相当する該硝子繊維強化熱硬化性樹脂は、
耐磨耗性に勝れる故歩行による磨耗は一般的には少ない
が、長期間の使用時にはやはり磨耗が生じ、その際には
やはり発熱素子と共に全交換する必要がある。また、表
面硬度の高い材料は、一般的には滑りやすい欠点も合わ
せ有しているので使用し難い。In Japanese Utility Model Application Laid-Open No. 58-94704, a heating element is formed in an L-shape, and the outside thereof is covered with a thermosetting resin reinforced with glass fibers formed into an L-shape as a protective layer and integrated. Shape is proposed. In this case, the glass fiber reinforced thermosetting resin corresponding to the tread of the step portion,
Since wear resistance is superior, wear due to walking is generally small, but wear occurs during long-term use, and in that case, it is necessary to completely replace the heater element together with the heating element. In addition, a material having a high surface hardness generally has a drawback that it is slippery, and thus is difficult to use.
【0006】[0006]
【発明が解決しようとする課題】前記の如く、従来の階
段ステップ部に設置する融雪用発熱体においては、その
踏面の保護層は歩行により磨耗または亀裂を起こし、発
熱体として使用に耐えなくなった場合、発熱素子を含め
全体を交換せねばならない欠点を有している。As described above, in the conventional heating element for snow melting installed on the step portion of the stairs, the protective layer on the tread surface is worn or cracked by walking and cannot be used as a heating element. In this case, there is a disadvantage that the entire device including the heating element must be replaced.
【0007】[0007]
【課題を解決するための手段】この欠点を補うべく、該
発熱体の被覆層部の踏面となる側を、中間層を介在させ
た2層とし、最表層部は耐スリップ性の良い、場合によ
っては適度の弾性を有する被覆材で構成し、歩行による
経時磨耗或いは亀裂等の損傷が発生した際には、該表層
部のみ極めて容易に剥離交換できる構造とされている。In order to compensate for this drawback, the side of the heating element which is to be the tread surface of the coating layer is made up of two layers with an intermediate layer interposed therebetween, and the outermost layer has good slip resistance. In some cases, it is made of a coating material having an appropriate elasticity, and when damage such as abrasion with time or cracks occurs due to walking, only the surface layer can be peeled and replaced very easily.
【0008】即ち、本発明は、電気絶縁被覆を施した面
状発熱素子と、その表裏両面を被覆する保護層より成る
階段融雪用発熱体において、該発熱体の踏面側の保護層
を、第1保護層および第2保護層の2層とし、該2層間
に2層相互の滑りはないが剥離を容易とする平均粒径1
0〜3000μmの粒状物の散布層または表裏に多数の
凹凸を有する金属、プラスチック、木材の板状物または
表裏に粘着剤を塗布して成るフィルム、シートである中
間層を設けたことを特徴とする階段融雪用発熱体を提供
するものである。That is, the present invention relates to a stepwise snow melting heating element comprising a planar heating element coated with an electrically insulating coating and a protective layer covering both the front and back surfaces, wherein the protective layer on the tread side of the heating element is formed by a second step. The first protective layer and the second protective layer are two layers, and there is no slip between the two layers between the two layers, but the average particle diameter is 1 to facilitate the separation.
0-3000 μm scattered layer of granular material or multiple
Metal, plastic, wood plate with unevenness or
Provide a heating element for stairs snow melting , characterized by providing an intermediate layer that is a film or sheet formed by applying an adhesive on the front and back.
Is what you do .
【0009】具体的には例えば、面状の発熱素子の表裏
にゴムまたは繊維強化ゴムアスファルトシート等で形成
された電気絶縁被覆を有し、階段ステップ部の踏面に面
する側の該ゴムまたはゴムアスファルトシートの表面に
10〜3000μmの無機質粒子を散布した中間層を形
成し、この上層に更にゴムまたはゴムアスファルトシー
トを重ねて圧着させてなる構造とされる。この様にする
ことによって、踏面となる最上層部が歩行により磨耗し
た際或いは亀裂等の損傷を起こした際に、中間層を境と
して上層のみを発熱体本体より容易に剥離し交換するこ
とができる。このため発熱体の長期使用が可能とされ
る。Specifically, for example, a planar heating element has an electrically insulating coating formed of a rubber or fiber reinforced rubber asphalt sheet on the front and back, and the rubber or rubber on the side facing the tread of the stair step portion. An intermediate layer in which inorganic particles of 10 to 3000 μm are scattered is formed on the surface of the asphalt sheet, and a rubber or rubber asphalt sheet is further laminated on this intermediate layer and pressed. In this way, when the uppermost layer serving as the tread is worn out by walking or is damaged such as a crack, only the upper layer can be easily separated from the heating element body and replaced with the intermediate layer as a boundary. it can. Therefore, the heating element can be used for a long time.
【0010】該中間層は、第1および第2保護層即ち下
層および上層の相互の滑りはないが剥離を容易とする層
であり、その構成材としては、前記の無機質粒子を散布
した層の他に、表裏に多数の凹凸を有する金属、プラス
チック、木材等からなる薄板や、或いは表裏両面に粘着
剤を塗布したプラスチックフィルムまたはシート状物と
することもでき、前記の層と同様の効果を発揮できる。The intermediate layer is a first and second protective layer, that is, a layer in which the lower layer and the upper layer do not slip with each other but are easy to peel off. Alternatively, a metal plate having a large number of irregularities on the front and back, a thin plate made of wood, or the like, or a plastic film or a sheet having an adhesive applied to both front and back surfaces can be used, and the same effect as the above-described layer can be obtained. Can demonstrate.
【0011】[0011]
【実施例】以下に本発明を図面に示される実施例に基い
て更に詳細に説明する。図1は、本発明の階段融雪用発
熱体が階段に設置された状態を示す概念図で、面状発熱
体11は、ステップSTの上面に個別に配置され、通電
用リード線により連綴されている。図2は、階段に設置
された本発明発熱体の平面図で、短冊状の複数の発熱体
11がステップST面の主要範囲を被覆した状態を示
す。図3は、面状発熱体11の一部破断斜視図で、電気
絶縁被覆された面状発熱素子12と、それを保護防水被
覆する第1および第2の保護層6、7より成る面状発熱
体を示す。図4は、ステップST上に設置された本発明
の階段融雪用発熱体の部分縦断面図で、2種類の中間層
8を示すもので、第1保護層6の上に無機粒状物8aを
散布した層または表裏に凹凸を有する金属、プラスチッ
クまたは木材からなる薄板(板状物)8bより成る中間
層8を重ね、その上面にの第2保護層7を重ねたものを
示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the embodiments shown in the drawings. FIG. 1 is a conceptual diagram showing a state in which a heating element for snow melting on a staircase according to the present invention is installed on a stair. The sheet heating elements 11 are individually arranged on the upper surface of the step ST, and are continuously bound by a lead wire for energization. I have. FIG. 2 is a plan view of the heating element of the present invention installed on the stairs, showing a state in which a plurality of strip-shaped heating elements 11 cover a main area of the step ST surface. FIG. 3 is a partially cutaway perspective view of the planar heating element 11, which is a planar heating element 12 having an electrically insulating coating and first and second protective layers 6, 7 for protecting and waterproofing the heating element. Shows a heating element. FIG. 4 is a partial vertical cross-sectional view of the heating element for stepping snow melting according to the present invention installed on the step ST, showing two types of intermediate layers 8, and an inorganic particulate material 8 a on the first protective layer 6. A layer in which the intermediate layer 8 made of a thin plate (plate-like material) 8b made of metal, plastic, or wood having irregularities on the front and back sides and a second protective layer 7 on the top and bottom surfaces is superposed is shown.
【0012】上記構造を有する本発明の階段融雪用発熱
体に内蔵される発熱素子12としては、例えば基材とな
る高絶縁抵抗値を有するプラスチックシートまたはフィ
ルム上に半導電性の塗料を塗布して成る半導電性シート
1と、これに電極2および絶縁被覆5とを設けた面状発
熱体素子12、またはあらかじめ合成樹脂中にカーボン
ブラックまたは金属粉を混入し、これをフィルムまたは
シート状に成形したものに電極および絶縁被覆を設けた
面状発熱素子12、またはカーボン繊維で織布または不
織布を作成し、これに電極および絶縁被覆を設けた面状
発熱素子12が挙げられる。The heating element 12 incorporated in the heating element for stepping snow melting according to the present invention having the above structure is, for example, a semiconductive paint applied on a plastic sheet or film having a high insulation resistance value as a base material. Heating element 12 provided with electrodes 2 and insulating coating 5 on the semi-conductive sheet 1 or carbon black or metal powder mixed in a synthetic resin in advance, and this is formed into a film or sheet. The planar heating element 12 in which an electrode and an insulating coating are provided on a molded product, or a woven or non-woven fabric made of carbon fiber and the electrode and the insulating coating are provided thereon is given.
【0013】上記記載の発熱素子12において、特にポ
リエチレン、ポリプロピレン等のポリオレフィン類系の
樹脂中に、カーボンブラックまたは銅等の導電性金属類
微粒子を充填して半導電性を付与したものを、適当な加
工機を使用してシートまたはフィルム状に成形して成る
半導電性シート1を有する発熱素子12は、その電気抵
抗値が正の温度係数を持つ、所謂PTC特性を示すた
め、通電加温の開始とそれに伴う昇温と共に、該素子の
電気抵抗値が増大し、発熱の自己抑制作用が働くため、
加温時の温度コントロールを行い易いので特に好まし
い。In the heating element 12 described above, in particular, a material in which conductive metal particles such as carbon black or copper are filled in a polyolefin resin such as polyethylene or polypropylene to impart semiconductivity is used. The heating element 12 having the semiconductive sheet 1 formed into a sheet or a film by using a simple processing machine has a so-called PTC characteristic whose electric resistance value has a positive temperature coefficient. With the start of the heating and the accompanying temperature rise, the electrical resistance of the element increases, and the self-suppressing action of heat generation acts.
This is particularly preferable because the temperature can be easily controlled during heating.
【0014】上記面状発熱素子12に設けられる電極2
の材料としては、テープ状金属箔または銅、アルミ等の
金属線の編組線、撚糸線のいずれも使用できるが、通電
用のリード線との結合の容易性から撚糸線を使用するこ
とが好ましい。The electrode 2 provided on the planar heating element 12
As a material of the tape-shaped metal foil or copper, braided metal wire such as aluminum, any of the twisted wire can be used, it is preferable to use a twisted wire from the ease of coupling with the lead wire for electricity .
【0015】上記面状発熱素子12を構成する電気絶縁
被覆5としては、各種熱可塑性樹脂または合成ゴムをシ
ートまたはフィルム状に加工したものが使用できるが、
発熱素子を構成する合成樹脂、或はカーボン繊維と該素
子の被覆加工時、良好な接着性を示すものが好ましい。As the electric insulating coating 5 constituting the planar heating element 12, a thermoplastic resin or synthetic rubber processed into a sheet or film can be used.
It is preferable to use a synthetic resin or carbon fiber which constitutes the heat generating element and a material exhibiting good adhesiveness when coating the element with the carbon fiber.
【0016】本発明発熱体11は、上記電気絶縁被覆5
を有する面状発熱素子12に、さらにその保護および防
水を目的として第1保護層6および第2保護層7が形成
されている。これらの保護層を構成する材料としては合
成ゴム、アスファルト及び双方の混合物、或は該混合物
中に無機質粉状物を混和してなるもの等が好ましい。ま
た更に、前記材料と繊維状物とを複合させた所謂複合材
料シートまたはフィルム状に加工したものも保護層とし
て使用できる。The heating element 11 of the present invention comprises
The first protective layer 6 and the second protective layer 7 are further formed on the sheet heating element 12 having As a material constituting these protective layers, synthetic rubber, asphalt and a mixture of both, or a mixture of the mixture and an inorganic powdery material are preferable. Furthermore, what is processed into a so-called composite material sheet or film in which the above-mentioned material and a fibrous material are combined can also be used as the protective layer.
【0017】本発明の特徴点は、階段ステップST上に
設置された発熱体の踏面側の保護層が、第1保護層6
(下層)および第2保護層7(上層)の2層で構成さ
れ、その2層間に上層の剥離を容易とする中間層8が形
成された点である。A feature of the present invention is that the protective layer on the tread side of the heating element installed on the stair step ST is formed by the first protective layer 6.
(A lower layer) and a second protective layer 7 (an upper layer), and an intermediate layer 8 is formed between the two layers to facilitate the separation of the upper layer.
【0018】この様にして、第2保護層(上層)7は、
その摩耗時或いは亀裂等による損傷の発生時に、取り替
え部材との交換が容易とされているが、両層は同一材料
とされることが好ましく、更には、第2保護層7の踏面
は、粘着性を示さないようにゴム、或はプラスチックス
のチップ状粉砕物、木材、無機質材料等の粒状物を混入
したもので表層部を構成しておくことがより好ましい。
また、第2保護層7を第1保護層6と異なる材料にする
場合には、例えば踏面を粗面としたセメントモルタル層
も好適である。As described above, the second protective layer (upper layer) 7
It is easy to replace the member with a replacement member when the member is worn or when damage is caused by cracks or the like. However, it is preferable that both layers are made of the same material. It is more preferable that the surface layer is formed by mixing rubber or plastic chip-like pulverized material, wood, inorganic material, or other granular material so as not to exhibit properties.
When the second protective layer 7 is made of a material different from that of the first protective layer 6, for example, a cement mortar layer having a rough tread surface is also suitable.
【0019】上記第2保護層7を形成する被覆の厚さ
は、歩行者による磨耗、損傷による交換迄の寿命を考慮
すると、厚い程好ましいが、余り厚いと伝熱効果が低下
し、または既設の階段上で歩行者に違和感を与え、歩行
が不安定となるので、3〜10mmの厚さが好ましい。The thickness of the coating for forming the second protective layer 7 is preferably as large as possible in consideration of the life until replacement by pedestrian wear or damage. A thickness of 3 to 10 mm is preferable because it gives a pedestrian an uncomfortable feeling on the stairs and makes walking unstable.
【0020】上記第1保護層6および第2保護層7の間
に設けられる中間層8は、第1層と第2層の剥離を容易
にするが、相互間の横ズレを防止する機能も有する層で
ある。該中間層8は、平均粒度10〜3000μmの、
好ましくは無機質からなる破砕粉(粒状物)8aを適度
な密度で第1保護層6表面に散布して形成される。第2
保護層7は、該中間層8の上に重ね、双方を加圧接着さ
せることにより形成される。かくすることにより該破砕
粉は第1保護層6および第2保護層7の双方に食い込
み、あたかも双方間に多数個の鎹を打ち込んだ状態にな
るので、前記機能が発揮される。上記中間層8に使用で
きる他の材料としては、表裏面に多数個の凹凸を有する
金属またはプラスチックからなる板状材料、表裏に粘着
剤を塗布したプラスチックのフィルム、シート状物も同
様の機能を示すので使用することができる。第2保護層
7をセメントモルタル層とする場合には、中間層8は、
凹凸を有する金属板、または粘着剤を塗布したプラスチ
ックシート等が好適である。The intermediate layer 8 provided between the first protective layer 6 and the second protective layer 7 facilitates separation of the first layer and the second layer, but also has a function of preventing lateral displacement between them. Layer. The intermediate layer 8 has an average particle size of 10 to 3000 μm,
Preferably, it is formed by sprinkling crushed powder (granular material) 8a made of an inorganic material at an appropriate density on the surface of the first protective layer 6. Second
The protective layer 7 is formed by overlapping the intermediate layer 8 and bonding them under pressure. By doing so, the crushed powder penetrates both the first protective layer 6 and the second protective layer 7, and it becomes as if a large number of clamps are driven between the two, so that the above function is exhibited. As other materials that can be used for the intermediate layer 8, plate-like materials made of metal or plastic having a large number of irregularities on the front and back surfaces, plastic films and sheet-like materials coated with an adhesive on the front and back surfaces have the same function. Can be used as shown. When the second protective layer 7 is a cement mortar layer, the intermediate layer 8
A metal plate having irregularities or a plastic sheet coated with an adhesive is suitable.
【0021】[0021]
【効果】以上のような本発明の階段用融雪発熱体を使用
すると、降雪地における階段構造物の該ステップ部の積
雪、結氷を防止できるので、歩行者による階段の踏み外
しや、スリップ転倒等の人身事故を防止することができ
ると共に、頻繁な歩行による踏面の上部保護層の磨耗、
損傷が生じた際に、発熱体全体を交換することなく、発
熱体の踏面側第2保護層7のみを極めて容易に交換する
ことができ、長期に渉り、該発熱体を階段融雪用に使用
できるので経済的であり、また滑り防止を要する踏面の
素材選択の幅が広げられるので効果的である。The use of the heating element for melting snow on a staircase according to the present invention as described above can prevent snow accumulation and ice formation on the step portion of the staircase structure in a snowfall area. In addition to preventing personal injury, wear of the upper protective layer of the tread due to frequent walking,
In the event of damage, only the tread-side second protective layer 7 of the heating element can be replaced very easily without replacing the entire heating element. It is economical because it can be used, and it is effective because the range of choice of materials for the tread requiring slip prevention can be expanded.
【0022】[0022]
【図1】本発明に係わる階段融雪用発熱体が階段に設置
された状態の概念図である。FIG. 1 is a conceptual diagram illustrating a state in which a heating element for melting snow on a staircase according to the present invention is installed on a staircase.
【図2】階段に設置された本発明の融雪用発熱体の平面
図である。FIG. 2 is a plan view of a snow melting heating element of the present invention installed on a staircase.
【図3】面状発熱体の一部破断斜視図である。FIG. 3 is a partially cutaway perspective view of a sheet heating element.
【図4】階段に設置された本発明の融雪用発熱体の2つ
の異なる例の部分縦断面図である。FIG. 4 is a partial longitudinal sectional view of two different examples of the snow melting heating element of the present invention installed on a staircase.
1 半導電性シート 2 電極 3 通電用リード線との結合カシメ金具 4a 通電用リード線 4b 通電用幹線 5 電気絶縁被覆 6 第1保護層 7 剥離可能な第2保護層 8 中間層 8a 中間層を形成する粉状物 8b 中間層を形成する凹凸を有する板状物 ST 階段ステップ部 1 semiconductive sheet 2 electrodes 3 Caulking metal fittings for connecting to the conducting wire 4a Lead wire for current supply 4b Main line for electricity 5 Electrical insulation coating 6 First protective layer 7 Peelable second protective layer 8 Middle class 8a Powdery substance forming intermediate layer 8b Plate-like object having irregularities forming intermediate layer ST Stair Step
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI H05B 3/14 H05B 3/34 3/34 E04F 11/08 (58)調査した分野(Int.Cl.7,DB名) H05B 3/20 310 E01C 11/26 E04F 11/02 E04F 11/16 E04H 9/16 H05B 3/14 H05B 3/34 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 identification code FI H05B 3/14 H05B 3/34 3/34 E04F 11/08 (58) Investigated field (Int.Cl. 7 , DB name) H05B 3/20 310 E01C 11/26 E04F 11/02 E04F 11/16 E04H 9/16 H05B 3/14 H05B 3/34
Claims (4)
その表裏両面を被覆する保護層より成る階段融雪用発熱
体において、該発熱体の踏面側の保護層を、第1保護層
および第2保護層の2層とし、該2層間に2層相互の滑
りはないが剥離を容易とする平均粒径10〜3000μ
mの粒状物の散布層または表裏に多数の凹凸を有する金
属、プラスチック、木材の板状物または表裏に粘着剤を
塗布して成るフィルム、シートである中間層を設けたこ
とを特徴とする階段融雪用発熱体。1. A planar heating element provided with an electrically insulating coating,
In a heating element for step snow melting which comprises a protective layer covering both the front and back surfaces, the protective layer on the tread side of the heating element is composed of two layers, a first protective layer and a second protective layer. No slippage but average particle size of 10-3000μ to facilitate peeling
m with a scattered layer of granular material or gold with many irregularities on the front and back
Adhesive on genus, plastic, wood plate or front and back
A heating element for stairs snow melting , comprising an intermediate layer which is a film or sheet formed by coating .
ーボンブラックを混練してなる混和物をシートまたはフ
ィルム状に成形してなる半導電性シートである請求項1
記載の階段融雪用発熱体。2. The semi-conductive sheet according to claim 1, wherein the planar heating element is a sheet or film formed from a mixture obtained by kneading carbon black in a thermoplastic polymer.
The heating element for melting snow on the stairs as described.
ァルト層である請求項1または2記載の階段融雪用発熱
体。3. The heating element according to claim 1 , wherein the second protective layer is a rubber or rubber asphalt layer.
る請求項1または2記載の階段融雪用発熱体。4. The heating element for stepping snow melting according to claim 1 , wherein the second protective layer is a cement mortar layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16935994A JP3536935B2 (en) | 1994-07-21 | 1994-07-21 | Heating element for stair melting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16935994A JP3536935B2 (en) | 1994-07-21 | 1994-07-21 | Heating element for stair melting |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0831552A JPH0831552A (en) | 1996-02-02 |
JP3536935B2 true JP3536935B2 (en) | 2004-06-14 |
Family
ID=15885123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16935994A Expired - Fee Related JP3536935B2 (en) | 1994-07-21 | 1994-07-21 | Heating element for stair melting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3536935B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10315362A1 (en) * | 2003-04-03 | 2004-10-14 | Anton Resch | A method for heating stone steps has electrical heating elements embedded in high heat conductive material in grooves cut into the underside of the stone |
FR2874782B1 (en) * | 2004-08-26 | 2006-12-08 | Brevetix Sarl | DEVICE FOR HEATING FIELDS, IN PARTICULAR SPORTS |
JP5294539B2 (en) * | 2006-03-09 | 2013-09-18 | 学校法人 龍谷大学 | Snow melting material and manufacturing method thereof |
JP2009259643A (en) * | 2008-04-17 | 2009-11-05 | Sato Unso:Kk | Snow-melting device for vehicle |
KR200465956Y1 (en) * | 2010-10-06 | 2013-03-19 | 고서연 | Heating fiber board fiooring |
CN102535770A (en) * | 2012-03-27 | 2012-07-04 | 鲁东大学 | Ice and snow prevention stair step |
-
1994
- 1994-07-21 JP JP16935994A patent/JP3536935B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0831552A (en) | 1996-02-02 |
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